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Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.1: Measures Of Center

Problem 4GP

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Question

The average salary of 81 random employees in a
certain financial sector was 3400 USD. The
sample standard deviation was 270 USD. We are
interested in the 60% confidence interval for the
population mean. What is the value of the ta/2
used?
Select one:
O a. 2.374
оb. 1.990
O C. 0.846
O d. 1.292
Ое. 2.639
O f. 1.664

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